CAS 548-24-3

Eosin B

Description:

Eosin B, with the CAS number 548-24-3, is a synthetic dye belonging to the class of xanthene dyes. It is characterized by its vibrant red color, which makes it useful in various applications, including histology and microscopy as a staining agent. Eosin B is soluble in water and exhibits a strong affinity for proteins, allowing it to effectively stain cellular components, particularly in biological tissues. The dye is often used in combination with other stains, such as hematoxylin, to enhance contrast in tissue samples. In terms of chemical structure, Eosin B contains multiple aromatic rings and functional groups that contribute to its chromophoric properties. It is important to handle Eosin B with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be taken during its use in laboratory settings. Overall, Eosin B is a valuable tool in biological research and diagnostic applications due to its effective staining capabilities.

Formula: C₂₀H₆Br₂N₂Na₂O₉

InChI: InChI=1/C20H8Br2N2O9.2Na/c21-13-15(25)11(23(28)29)5-9-17(13)32-18-10(6-12(24(30)31)16(26)14(18)22)20(9)8-4-2-1-3-7(8)19(27)33-20;;/h1-6,25-26H;;/q;2*+1/p-2

InChI key: InChIKey=PNIVQIVRNJYFFG-UHFFFAOYSA-N

SMILES: O=C1OC2(C=3C(OC=4C2=CC(N(=O)=O)=C(O)C4Br)=C(Br)C(O)=C(N(=O)=O)C3)C=5C1=CC=CC5.[Na]

Synonyms:

• ,5'-Dibromo-2',7'-dinitrofluorescein, disodium salt
• Acid Red 91
• Dibromodinitrofluorescein sodium
• Disodium 4',5'-Dibromo-2',7'-Dinitro-3-Oxo-Spiro[Isobenzofuran-1,9'-Xanthene]-3',6'-Diolate
• Eosin B, high purity biological stain
• Eosin BA
• Eosin Bluish
• Eosin scarlet
• Eosine B
• Eosine BA
• Eosine BN
• Eosine BNX
• Eosine I Bluish
• Eosine Scarlet
• Fluorescein, 4′,5′-dibromo-2′,7′-dinitro-, disodium salt
• Saffrosine
• Simacid Nitro Eosin 24669
• Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro-, disodium salt
• Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 4′,5′-dibromo-3′,6′-dihydroxy-2′,7′-dinitro-, disodium salt
• Spiro[isobenzofuran-1(3H),9′-[9H]xanthen]-3-one, 4′,5′-dibromo-3′,6′-dihydroxy-2′,7′-dinitro-, sodium salt (1:2)
• disodium 2-(4,5-dibromo-2,7-dinitro-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate
• C.I. 45400
• Eosin B
• C.I. Acid Red 91
• Eosine B (C.I. 45400)
• Zinc04261930
• EOSIN RED
• Eosin B, high purity, biological stain, pure
• CAESAR RED
• HydroxydibroModinitro-o-carboxy-phenylfluorone sodiuM
• EOSIN B (C.I. 45400) FOR MICROSCOPY CERT
• Spiro(isobenzofuran-1(3H),9’-(9H)xanthen)-3-one,4’,5’-dibromo-3’,6’-dihydroxy-2’,7’-dinitro-,disodiumsalt
• EOSIN B DISODIUM SALT
• Nophalin G
• Eosin B,pure,high purity, biological stain
• Fluorescein, 40,50-dibromo-20,70-dinitro-,
• EosineBlueForMicroscopy
• Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 4,5-dibromo-3,6-dihydroxy-2,7-dinitro-, disodium salt
• SAFFROSINE DISODIUM SALT
• EOSIN BLUE SHADE
• SAFROSIN
• EOSIN B SPIRIT SOLUBLE
• Eosin B,pure,certified
• Eosin B, high purity, biological stain, pure 25GR
• 7’-dinitro-2disodiumsalt
• EOSIN B, CERTIFIED, PURE
• EOSIN B CERTIFIED
• Dibromodinitrofluorescein
• EosineB(AcidRed91)
• EOSIN B C.I. NO. 45400 FOR MICROSCOPY
• BEosi
• Eosin B (bluish)
• 4,5-DIBROMO-2,7-DINITROFLUORESCEIN DISODIUM SALT
• Eosin B, Pure
• Eosine Scarlet B
• 3-one, 40,50-dibromo-30,60-dihydroxy-20,70-dinitro-,
• EOSIN B CERTIFIED (C.I. 45400)
• Eosin B,sodium salt
• Eosin B (bluish) (C.I.45400) for microscopy Certistain
• Spiro[isobenzofuran-1(3h),90-[9h]xanthen]-
• 4',5'-Dibromo-3',6'-dihydroxy-2',7'-dinitrospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one sodium salt
• EOSINE BLUE C.I. No ( 45400 )
• disodium Salt
• EOSIN BLUISH, B STANDS FOR ''BLUISH''
• EOSIN SCARLET, FOR MICROSCOPY
• 2-(4,5-dibromo-3,6-dihydroxy-2,7-dinitroxanthen-9-yl)-benzoic acid, disodium salt
• Acid Red91, Eosin bluish, Eosin Scarlet, Saffrosine, 4μ,5μ-Dibromo-2μ,7μ-dinitrofluorescein disodium salt
• IMPERIAL RED
• LABOTEST-BB LT00847322
• EOSIN BN
• Acid red 91 (C.I. 45400)
• EOSIN BA OR BN
• 4',5'-DIBROMO-2',7'-DINITROFLUORESCEIN DISODIUM SALT
• CI NO 45400
• 4,5-DIBROMO-2,7-DINITROFLUORESCEIN
• EOSIN B, WATER SOLUBLE
• sodium
• CI 45400
• EOSIN BLUISH, WATER-SOLUBLE, PURE, FOR M ICROSCOPY

Acid Red 91

CAS: 548-24-3

Formula: C₂₀H₆Br₂N₂Na₂O₉

Color and Shape: Amber to Brown powder to crystal

Molecular weight: 624.06

Ref: 3B-E0204

Eosin B

CAS: 548-24-3

Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary. This Thermo Scientifi

Formula: C₂₀H₆Br₂N₂Na₂O₉

Color and Shape: Dark green to red/brown or dark brown, Powder

Molecular weight: 624.06

Ref: 02-A17377

Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro-, disodium salt

CAS: 548-24-3

Formula: C₂₀H₆Br₂N₂Na₂O₉

Purity: 85%

Color and Shape: Solid

Molecular weight: 624.0572

Ref: IN-DA00I9S9

Eosin B (C.I. 45400)

CAS: 548-24-3

Formula: C₂₀H₆Br₂N₂Na₂O₉

Color and Shape: Dark brown to dark green powder

Molecular weight: 624.08

Ref: 7W-GT6445

Eosin B

CAS: 548-24-3

Eosin B

Purity: BS

Molecular weight: 624.06g/mol

Ref: 54-OR1013107

Eosin B

CAS: 548-24-3

Purity: BS,Dye content≥85%

Molecular weight: 621.82

Ref: 10-F554905

Acid Red 91

Controlled Product

CAS: 548-24-3

Formula: C₂₀H₆Br₂N₂Na₂O₉

Color and Shape: Neat

Molecular weight: 624.06

Ref: TR-A795298

Eosin Blue (C.I. No. 45400), 85%

CAS: 548-24-3

Formula: C₂₀H₆Br₂N₂Na₂O₉

Purity: min. 85%

Color and Shape: Dark Green, Crystalline Powder

Molecular weight: 624.06

Ref: SR-56605